The incidents were in the Blackley , Crumpsall , and Moston areas and the culprits struck late last night and in the early hours of today.

In a statement GMP said: “Police are investigating a series of three arson attacks on properties in the North Manchester area overnight. There have been no serious injuries but a number of people were treated for smoke inhalation.”

It is understood that in all three incidents a firebomb was hurled at the property.

The first attack was at 8.50pm last night in Worthington Street, Moston. Firefighters were called to a house after a front door had been torched.

A brigade spokesman said the fire was out on arrival but oxygen treatment was given by crews to one person.

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Another attack was at 1.46am today in Hendon Road, Blackley. Three fire engines were sent to scene and one casualty was led to safety by officers.

In that incident the kitchen of the property was torched.

The third incident was at exactly the same time - 1.46am - in Waterloo Street, Crumpsall. In that incident two people needed treatment for smoke inhalation after a fire involving a living room at a semi-detached house.

Third attack: Waterloo Street in Crumpsall (Image: Google)

Crews wearing breathing apparatus tackled the blaze and were at the scene for 90 minutes.